The package includes: you can receive 100 pieces of water restrictors with different water specifications, distinguished by different colors, namely, blue color 1.5 GPM water restrictor, yellow 1.8 GPM water restrictor, green 2.0 GPM water restrictor, white 2.5 GPM water restrictor and gray 3.0 GPM water restrictor, each color has 20 pieces, you can choose needed specifications to save water according to your demand Easy and practical to use: installation and disassembly of our shower head limiter set are very simple within a few minutes; Water restrictor help you control the water rate at , so as to help you save and Quality material: our shower water reducer is made of quality POM material, safe and stable for a long term service, not easy to break or damage; The working temperature is 0~90℃, which makes the reducer suitable for most household showers, so you can apply it with confidence Scope of application: shower water reducer is suitable for fixed shower head or handheld shower with an aperture of 0.566 inch/ 14.3 mm; Also the water reducer can be applied for other equipment ventilators that need to limit the rate, a wide scope of application satisfy your various demands in Size details: each water reducer is 14.3 x 13.85 x 5.2 mm, small; Please refer to the size information and it is suitable for standard-size shower; There are some differences in the size of showers, and they not be applicable; A proper and considerate size is for easy use and store without taking much space, also for simply carried out without effort., Manufacturer: Jnchdghwa